This paper introduces an analytical and experimental investigation for both
dynamics and steady-state of a dc series motor fed from a single-phase AC to DC
pulse width modulated (PWM) voltage source converter. The source impedance as
well as the saturation effects were taken into consideration. The differential equations
describing the system behavior in the different modes of operation are given. Solving
these equations using fourth order Runge-Kutta method enabled the prediction of the
motor performance in both transient and steady-state conditions. The large chopping
frequency facilitate the input filter requirements of the supply current. The supply
current, which is considered sinusoidal, can be controlled with a near unity power
factor. The complete performance is verified expcrimentally where close agreement
between the computed and test results is achieved.